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June 25, 2012

GL Communications Unveils Scripted LTE S1 Interface Emulator


By Carolyn J Dawson SIP Trunking Report Contributor



GL Communications Inc recently announced the release of its MAPS LTE S1 Interface Emulator for commercial use. PC-based test, analysis and simulation products are offered by GL Communications to the telecommunications industry throughout the world.


In a release, Mr. Jagdish Vadalia, senior manager at GL Communications, said, “GL’s Message Automation & Protocol Simulation (MAPS) designed for testing LTE – S1 interface (any interface excluding Air interface) can simulate eNodeB (Evolved Node B), and MME (Mobility Management Entity). MAPS is also capable of simulating S11 and S5/S8 (LTE-eGTP) interfaces. Other interfaces such as S4, S11, and S12 will also be supported by the application in near future. GL also provides a GUI based LTE analyzer for on-line capture and decode of the signaling in real-time both during tests and as a stand-alone tracer for live systems.”

The MAPS LTE S1 Interface Emulator is capable of simulating eNodeB, and MME elements in S1 interface. Apart from supporting LTE control plane, the emulator can create and act in response to hundreds of UE signaling during load testing. Both valid and invalid S1/NAS messages can be created and processed by the emulator. Error conditions can also be reproduced by including impairments into the messages.

The emulator utilizes the script editor and message editor to support custom-design of call flows and message templates. The emulator also includes ready-made scripts, thereby ensuring rapid testing. Pre-defined call creation and computerized call reception is also ably assisted by the emulator. A protocol trace, comprising of complete message decoding, is offered. The emulator also offers diagrammatic ladder diagrams of call flow along with time-related information and pre-defined and protocol independent software architecture, along with call statistics and related captured events and error events during call reproduction.

Telecommunications industries can avail test, monitoring, and analysis equipment from GL Communications Inc. for TDM, Wireless, IP and VoIP networks. Visualization, capture, storage, and suitable features like portability, remotability, and scripting, which are currently not offered by any traditional test equipment, are offered by GL Communication’s test platforms. 

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Edited by Brooke Neuman